Anchors



(N M del.) 4 Sheets-Sheet 1.

J. NOOK.

V MACHINE FOR FORGING ANGHORS. No. 273,185 Patented Feb.27,1883.

(No Model.) 4 Sheets-Sheet 2.

J. NOCK.

MACHINE FOR FORGING ANGHOBS. No. 273,135. Patented Peb.2'7,1883.

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- (N9 Model.) 4 Sheets-Sheet 3 I 'J,NOOK. MACHINE FOR FORGING ANOHORS.

No. 273,135. Patented Feb.27, 1883.

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(No Model.) NOGK. 4 Sneets-Sheet 4.

MACHINE 190R FORGING ANGHORS. No. 273 135. Patented Feb. 27, 1883.

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UNITED STATES PATENT OFFICE.

JOHN NOOK, or GONSTA-NTINOPLE, TURKEY.

MACHINF FOR FORGING ANCHO'RS.

SPECIFICATION forming part of Letters Patent 1\To 273,135, dated February 2'7, 1883.

Application filed July 5, 1852. (No model.) Patented in England December .29, 1881, No. 5,708.

To all whom it may concern:

Be it known that I, JOHN NOCK, a subject ofthe Queen of England, and residing at Hasskeny, Uonstantinople, in the Empire of Turkey, have invented new and useful Improvements in the Manufacture of Anchors, and in Machinery orApparatus Therefor, (for which I have obtained provisional protection in Great Britain, dated 29th of December, 1881, No. 5,708,) of which the following is a specification.

This invention has for its object the production of anchors rolled from one solid ingot of steel or iron, and therefore insures greater strength and solidity than is possessed by anchors forged and welded up by the hammer process, as at present, and does away with the system of filling in the crown or thick part of the anchor by welding pieces therein, as is usually done at the forge at the present time.

Figure 1 is a front elevation of the rollingmill; Fig. 2, a plan view of the same; Fig. 3, a section on line Z Z of Fig. 1, looking to the left; Fig. 4, a plan view ofFig. 3. Figs. 5, 6, 7,

portion or head of the slab is now punched out in somewhat of a crescent shape, Y, Fig. 5, and two cutters are then placed upon it, which split the metal open and give it the triangular shape shown in Fig. 6, Z Z, Fig. 5, showing where the slab is cut from the main body of metal. The two arms are then thrown back at right angles to the shank, (see Fig. 7,) and the flukes are then spread outinto their usual form upon swage-blocks, as in Figs. 9and 10, which form the round parts of the arms at the backs of the palms, Fig. 10. Fig. 7 shows the throat of the anchor reduced to its required size by the top and bottom hammer-blocks, V. Fig. 8 shows a dog fixed on the shank to prevent the bridle-chain Wfrom slipping up durin g the forging operation, and the rough forghand-wheel, H, as shown.

next proceed to describe.

The foregoing process will be well understood by those skilled in the art of forging anchors in the ordinary manner.

A A, Fig. 1, are portions of the strong general framing of themill.

B B are top and bottom horizontal rolls which flatten out the shank of the anchor, and O O are two vertical rolls which edge in the same.

D is the main shaft, which drives the whole mill by means of the bevel-gearing E, revers ing being accomplished by the clutch F working upon feathers in shaft-D and gearing with ing is now ready for the mill, which i shall clutches E and E upon bevel-wheels Efas will be well understood."

F is a clutch-lever for operating the clutch F, and F is a cylinder for working the lever.

Upon shaft D, which carries the large bevelwheel E, is a spur-wheel, D which gears with the large spur-wheel G, and upon the shaft of G is fixed another spur-wheel, G, which, gearing with wheel B, drives the bottom roll B, while the small spur-wheel B upon the shaft B, which drives bottom roll B, gearing with wheel B upon shaft B drives the top roll'B. Wheel G also gears with another wheel, upon shaft 0 which, through bevel-gearing G and spur-wheel G on vertical shaft 0, drives one roll 0. Spur-wheel 0 gears with a like wheel, 0, upon vertical shaft 0", which carries the second'roll O. The shafts B and B are in separate pieces, joined by loose boxes B and B and coupling-boxes, the object of the loose boxes being to allow of the distance between the rolls B being varied, as will be best understood by reference to Figs. 1 and 3.

Top roll B has its bearings in movable blocks H, capable of being raised or lowered by screws H, the top end of each of which carries a spurwheel, H both of which gear with a pinion, H upon the shaft whereof is a worm-wheel, H turned by worm H, which may be driven by power in any convenient manner, or by a The rolls 0 are also adjustable laterally, as shown in Figs. 1, 3, and 4, the shafts G and 0 being stepped in loose boxes I, Fig. 1, to permit of this. In the plan, Fig. 4, the rolls 0 take their top hearings in movable blocks K, capable of sliding in the frame-work.

2 Y 273,li35

As shown, K are screws which screw into blocks J, which are suitably jointed to links K whose other ends take onto eccentrics K upon the upper ends of shaft K, Fig. 3. The lower ends of the shafts K carry worm-wheels L, operated by worms L, both of which worms are secured upon or form part of the same horizontalshaftL AstheshaftL revolves,it turns both worms and worm-wheels at the same speed, and these, by shafts K and eccentrics K operate links K which draw out or force in the blocks J and-K and rolls at an equal rate, thus forming an even taper upon the shank of the anchor placed between them The screws K are formed with a hexagonal collar, ratchet, or othersuitable device, K whereby they may be turned by hand for adjustment, or when parallel work is to be rolled instead of taper.

Upon shaft L is a clutch, L Fig.1, by which that part of the shafts which carries the worms can be disconnected whentapered workis not in hand, and the worm arrangement is therefore not required. L is really a continuation of shaft L and joined to it by clutch L when in gear, and upon L are different-sized gear wheels L which take their motion from corresponding wheels, L (but so placed that the largest wheel L gears with the smallest wheel L and the largest L with the smallest L and only one pair of wheels is fully in gear at one time,) fixed upon a sleeve, L, which slides upon a counter-shaft, L", driven by the gear-wheel L which in turn gears with and receives motion from 0 It thus appears that by means of the dilferential gear L and L the speed at which the rolls 0 are separated, and therefore the amount of taper on the shank ofthe anchor, can be regulated at will, or no taper at all be formed by disconnecting the clutch L The operation of the mill is as follows: The anchor-stock is inserted between the rolls B B, which flatten out the metal and form the sides of the stock. The stock passes onto the "ertical rolls 0 O, which edge the metal in, give the required taper, as already explained, and also form the bulge for the hole near the end. The stock is then withdrawn and the arms inserted in turn, and formed and tapered. Each portion is passed through the rolls as often as necessary-usually not more than six times. After the three limbs have been successively rolled to shape the two arms, which stand at right angles to the shank, are curved to their required form the last time of passing through the rolls by means of a chain-guide, as will be readily understood by referring to Fig. 12, where the anchor is shown secured by a chain to-the pin U, passing through a hole in a web or projection upon the frame-work, where there are several of these holes to suit anchors of different sizes. A center is thus formed, round which the anchor travels as the arm passes through the rolls 0. The dotted lines show the curve into which the arms are thus formed. This gives the requisite curve at the throat of the anchor, and if the tips aremechanism for rolling the shank and arms of a uniform taper, which consists of a pair of horizontal and a pair of vertical rolls, B 13 (1C, operating in conjunction with each other, and mechanism, substantially as described, for causing the rolls of each pair to automatically and gradually recede from each other as the anchor-shank passes between them, substan tially as and for the purposes specified.

2. In a mill for rolling anchors, the combination, with the adjustable rolls 0, of eccentrics K worm-wheels L, and worms Land their connecting mechanism, said worms being rigidly connected by shaft L so as to work simultaneously, whereby said rolls 0 can be caused to approach or recede from each other at an equal speed, substantially. as and for the purposes set forth and shown.

3. In combination with rolls 0, the blocks K and J and screws K, whereby the rolls can be adjusted by hand, independently of the other operating mechanism, substantially as and for the purposes set forth and shown.

4:. In a mill or machine for rolling anchors, mechanism for rolling the shanks of a uniform taper, which consists of'a pair of rolls, 0 G, mechanism for rotating said rolls, and mechanism, substantially such as described, to cause the rolls of each pair to recede from each other as the anchor-shank passes between them, in combination with mechanism to impart to said rolls a differential speed, which consists of the counter-shaft L ditferentiahgear wheels L,

difierential-gear wheel L the shaft L and intermediate gearing, whereby said parts are driven from a common driving-shaft, substanscribed.

JOHN NOCK.

Witnesses:

JAMES ROWE, JOHN FERGUSON. 

